W32.Bugbear@mm Upgraded To Level 4 Virus

W32.Bugbear@mm Upgraded To Level 4 Virus

Name: ::::::::::::W32.Bugbear@mm

Category: ::::::::::::4 (severe)

Virus Definitions: ::::::September 30, 2002 (US Pacific Time)

Type: ::::::::::::Worm

Aliases: ::::::::::::W32/Bugbear-A [Sophos], WORM_BUGBEAR.A [Trend], Win32.Bugbear [CA], W32/Bugbear@MM :[McAfee], I-Worm.Tanatos [AVP], W32/Bugbear [Panda], Tanatos [F-Secure]

Payload: ::::::::::::Large-scale emailing: Attempts to mass-mail to addresses harvested from a compromised host using it's own SMTP engine. Compromises security settings: May allow unauthorised access to compromised machines. Attempts to terminate processes of various antivirus and firewall programs.

Subject of email: ::::::Variable

Name of attachment: ::::::Variable, with double extension ending in .exe, .scr, or .pif

Size of attachment: ::::::50,688 bytes

Ports: ::::::::::::36794

Shared drives: :::::: :::Attempts to connect to available network resources

Today Symantec Security Response has upgraded W32.Bugbear@mm from a 3 to a level 4 virus on a scale of 1-5, with 5 being the most serious. The upgrade is due to the increase of customer submissions to Security Response from customers. As of yesterday morning, Symantec had a total 157 submissions of the virus from consumers. This morning, Symantec Security Response has had 2039 submissions from consumers.

W32.Bugbear@mm can be categorised as a blended threat. It is a mass-mailing worm and can also spread through network shares. It also has keystroke-logging and backdoor capabilities and attempts to terminate the processes of various antivirus and firewall programs. It includes a Trojan that attempts to disable antivirus and firewall software so it can then attempt to steal the user's passwords and credit card details. It installs a keylogger on compromised systems to capture the user's key strokes which could expose usernames and passwords or other confidential information. It has a bug that causes it to attempt to replicate to network printers when looking for network drives to infect. This can cause strange print outs from printers.

Both the subject of the email and the name of the attachment are variable but the size of the attachment is always 50,688 bytes. The worm's email message uses one of the following subjects:

Greets!
Get 8 FREE issues - no risk!
Hi!
Your News Alert
$150 FREE Bonus!
Re:
Your Gift
New bonus in your cash account
Tools For Your Online Business
Daily Email Reminder
News
free shipping!
its easy
Warning!
SCAM alert!!!
Sponsors needed
new reading
CALL FOR INFORMATION!
25 merchants and rising
Cows
My eBay ads
empty account
Market Update Report
click on this!
fantastic
wow!
bad news
Lost & Found
New Contests
Today Only
Get a FREE gift!
Membership Confirmation
Report
Please Help...
Stats
I need help about script!!!
Interesting...
Introduction
various
Announcement
history screen
Correction of errors
Just a reminder
Payment notices
hmm..
update
Hello!

All versions of Windows are vulnerable to this worm but users of Macintosh, Unix and Linux are not.

Virus definitions are available to Symantec customers through LiveUpdate. A removal tool is also available via Symantec Security Response at http://securityresponse.symantec.com/avcenter/venc/data/w32.bugbear@mm.htm As usual, Symantec encourages users to download virus definitions on a regular basis.

A scan to check for the presence of W32.Bugbear@mm is available at Symantec Security Check www.symantec.com/securitycheck . The free service enables PC and Macintosh home users around the globe the opportunity to pinpoint, understand, and resolve online security vulnerabilities of their individual computers.

© Scoop Media